EP1361340A3 - Turbine blade with a root notch - Google Patents

Turbine blade with a root notch Download PDF

Info

Publication number
EP1361340A3
EP1361340A3 EP03252813A EP03252813A EP1361340A3 EP 1361340 A3 EP1361340 A3 EP 1361340A3 EP 03252813 A EP03252813 A EP 03252813A EP 03252813 A EP03252813 A EP 03252813A EP 1361340 A3 EP1361340 A3 EP 1361340A3
Authority
EP
European Patent Office
Prior art keywords
turbine blade
root
dovetail
notch
root notch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03252813A
Other languages
German (de)
French (fr)
Other versions
EP1361340A2 (en
EP1361340B1 (en
Inventor
William Charles Herman
Brian Alan Norton
Brian David Keith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of EP1361340A2 publication Critical patent/EP1361340A2/en
Publication of EP1361340A3 publication Critical patent/EP1361340A3/en
Application granted granted Critical
Publication of EP1361340B1 publication Critical patent/EP1361340B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A turbine blade (10) includes an airfoil and dovetail (18). The dovetail includes a pair of supporting tangs (26). A rectangular root block (36) bridges the tangs over a majority of the root end thereof. The block terminates short of one endface (40) of the dovetail to form a root notch (42) thereat for preferentially reducing weight.
EP03252813A 2002-05-06 2003-05-06 Turbine blade with a root notch Expired - Fee Related EP1361340B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/139,534 US6786696B2 (en) 2002-05-06 2002-05-06 Root notched turbine blade
US139534 2002-05-06

Publications (3)

Publication Number Publication Date
EP1361340A2 EP1361340A2 (en) 2003-11-12
EP1361340A3 true EP1361340A3 (en) 2005-08-17
EP1361340B1 EP1361340B1 (en) 2007-12-19

Family

ID=29249770

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03252813A Expired - Fee Related EP1361340B1 (en) 2002-05-06 2003-05-06 Turbine blade with a root notch

Country Status (5)

Country Link
US (1) US6786696B2 (en)
EP (1) EP1361340B1 (en)
JP (1) JP4179921B2 (en)
CN (1) CN100359134C (en)
DE (1) DE60318147T2 (en)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0307039D0 (en) * 2003-03-26 2003-04-30 Rolls Royce Plc A compressor blade
JP4254352B2 (en) * 2003-06-04 2009-04-15 株式会社Ｉｈｉ Turbine blade
US7223072B2 (en) * 2004-01-27 2007-05-29 Honeywell International, Inc. Gas turbine engine including airfoils having an improved airfoil film cooling configuration and method therefor
US7507075B2 (en) * 2005-08-15 2009-03-24 United Technologies Corporation Mistake proof identification feature for turbine blades
US7534085B2 (en) * 2006-06-21 2009-05-19 United Technologies Corporation Gas turbine engine with contoured air supply slot in turbine rotor
SG143087A1 (en) * 2006-11-21 2008-06-27 Turbine Overhaul Services Pte Laser fillet welding
JP2010535968A (en) * 2007-08-08 2010-11-25 アルストム テクノロジー リミテッド Turbine rotor mechanism
US8282354B2 (en) * 2008-04-16 2012-10-09 United Technologies Corporation Reduced weight blade for a gas turbine engine
JP5379585B2 (en) * 2009-07-15 2013-12-25 株式会社日立製作所 Steam turbine with cleaning function for blade mounting part
US8496443B2 (en) * 2009-12-15 2013-07-30 Siemens Energy, Inc. Modular turbine airfoil and platform assembly with independent root teeth
US8231354B2 (en) * 2009-12-15 2012-07-31 Siemens Energy, Inc. Turbine engine airfoil and platform assembly
US8622702B1 (en) 2010-04-21 2014-01-07 Florida Turbine Technologies, Inc. Turbine blade with cooling air inlet holes
US9920625B2 (en) * 2011-01-13 2018-03-20 Siemens Energy, Inc. Turbine blade with laterally biased airfoil and platform centers of mass
JP5808173B2 (en) * 2011-07-08 2015-11-10 株式会社東芝 Steam turbine
CN102434218B (en) * 2011-11-27 2014-04-23 王政玉 Fluid turbine engine
US9249669B2 (en) * 2012-04-05 2016-02-02 General Electric Company CMC blade with pressurized internal cavity for erosion control
CA2789820C (en) 2012-09-13 2019-11-26 General Electric Company Treatment of produced water concentrate
CA2789822C (en) 2012-09-13 2019-06-04 General Electric Company Produced water treatment and solids precipitation from thermal treatment blowdown
US9297263B2 (en) * 2012-10-31 2016-03-29 Solar Turbines Incorporated Turbine blade for a gas turbine engine
US20140174098A1 (en) * 2012-12-20 2014-06-26 United Technologies Corporation Turbine disc with reduced neck stress concentration
WO2014143286A1 (en) * 2013-03-15 2014-09-18 United Technologies Corporation Fan blade lubrication
US9739159B2 (en) * 2013-10-09 2017-08-22 General Electric Company Method and system for relieving turbine rotor blade dovetail stress
US9938835B2 (en) * 2013-10-31 2018-04-10 General Electric Company Method and systems for providing cooling for a turbine assembly
US9896945B2 (en) * 2013-11-25 2018-02-20 General Electric Company Process of producing a ceramic matrix composite turbine bucket, insert for a ceramic matrix composite turbine bucket and ceramic matrix composite turbine bucket
US9797270B2 (en) * 2013-12-23 2017-10-24 Rolls-Royce North American Technologies Inc. Recessable damper for turbine
JP2015135061A (en) * 2014-01-16 2015-07-27 株式会社Ihi Blade connection part structure and jet engine using the same
US9777575B2 (en) 2014-01-20 2017-10-03 Honeywell International Inc. Turbine rotor assemblies with improved slot cavities
US10094228B2 (en) 2015-05-01 2018-10-09 General Electric Company Turbine dovetail slot heat shield
US10400784B2 (en) 2015-05-27 2019-09-03 United Technologies Corporation Fan blade attachment root with improved strain response
EP3187685A1 (en) 2015-12-28 2017-07-05 Siemens Aktiengesellschaft Method for producing a base part of a turbine blade
CN109578084B (en) * 2017-09-28 2021-08-03 中国航发商用航空发动机有限责任公司 Blade and method for improving aerodynamic performance of blade
US10731475B2 (en) 2018-04-20 2020-08-04 Raytheon Technologies Corporation Blade with inlet orifice on aft face of root
US10934874B2 (en) * 2019-02-06 2021-03-02 Pratt & Whitney Canada Corp. Assembly of blade and seal for blade pocket

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB537121A (en) * 1939-02-23 1941-06-10 Allis Chalmers Mfg Co Improvements in and relating to turbine blading
US2755062A (en) * 1951-07-13 1956-07-17 Bristol Aeroplane Co Ltd Blade-locking means for turbine and the like rotor assemblies
US4500258A (en) * 1982-06-08 1985-02-19 Rolls-Royce Limited Cooled turbine blade for a gas turbine engine
US4936749A (en) * 1988-12-21 1990-06-26 General Electric Company Blade-to-blade vibration damper
US5836742A (en) * 1995-08-01 1998-11-17 Allison Engine Company, Inc. High temperature rotor blade attachment
EP1136654A1 (en) * 2000-03-21 2001-09-26 Siemens Aktiengesellschaft Turbine rotor blade

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1350471A (en) 1971-05-06 1974-04-18 Secr Defence Gas turbine engine
US3720480A (en) 1971-06-29 1973-03-13 United Aircraft Corp Rotor construction
US4010531A (en) 1975-09-02 1977-03-08 General Electric Company Tip cap apparatus and method of installation
US4444544A (en) * 1980-12-19 1984-04-24 United Technologies Corporation Locking of rotor blades on a rotor disk
FR2519072B1 (en) 1981-12-29 1986-05-30 Snecma DEVICE FOR AXIAL AND RADIAL RETENTION OF A TURBO JET ROTOR BLADE
US4451205A (en) 1982-02-22 1984-05-29 United Technologies Corporation Rotor blade assembly
US4480957A (en) * 1983-04-14 1984-11-06 General Electric Company Dynamic response modification and stress reduction in dovetail and blade assembly
US4820126A (en) 1988-02-22 1989-04-11 Westinghouse Electric Corp. Turbomachine rotor assembly having reduced stress concentrations
US5135354A (en) * 1990-09-14 1992-08-04 United Technologies Corporation Gas turbine blade and disk
US5139389A (en) * 1990-09-14 1992-08-18 United Technologies Corporation Expandable blade root sealant
US5314307A (en) * 1992-12-18 1994-05-24 Alliedsignal Inc. Gas turbine test airfoil

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB537121A (en) * 1939-02-23 1941-06-10 Allis Chalmers Mfg Co Improvements in and relating to turbine blading
US2755062A (en) * 1951-07-13 1956-07-17 Bristol Aeroplane Co Ltd Blade-locking means for turbine and the like rotor assemblies
US4500258A (en) * 1982-06-08 1985-02-19 Rolls-Royce Limited Cooled turbine blade for a gas turbine engine
US4936749A (en) * 1988-12-21 1990-06-26 General Electric Company Blade-to-blade vibration damper
US5836742A (en) * 1995-08-01 1998-11-17 Allison Engine Company, Inc. High temperature rotor blade attachment
EP1136654A1 (en) * 2000-03-21 2001-09-26 Siemens Aktiengesellschaft Turbine rotor blade

Also Published As

Publication number Publication date
DE60318147D1 (en) 2008-01-31
JP2004003471A (en) 2004-01-08
EP1361340A2 (en) 2003-11-12
EP1361340B1 (en) 2007-12-19
CN100359134C (en) 2008-01-02
JP4179921B2 (en) 2008-11-12
US6786696B2 (en) 2004-09-07
DE60318147T2 (en) 2008-12-04
US20030206803A1 (en) 2003-11-06
CN1456791A (en) 2003-11-19

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